Definition of spiral

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Spiral (a.) Winding or circling round a center or pole and gradually receding from it; as, the spiral curve of a watch spring..

Lern More About Spiral

Koodoo :: Koodoo (n.) A large South African antelope (Strepsiceros kudu). The males have graceful spiral horns, sometimes four feet long. The general color is reddish or grayish brown, with eight or nine white bands on each side, and a pale dorsal stripe. The old males become dark bluish gray, due to the skin showing through the hair. The females are hornless. Called also nellut..
Rifle :: Rifle (v. t.) To grove; to channel; especially, to groove internally with spiral channels; as, to rifle a gun barrel or a cannon..
Gyratory :: Gyratory (a.) Moving in a circle, or spirally; revolving; whirling around..
Heterodromous :: Heterodromous (a.) Having spirals of changing direction.
Suspiration :: Suspiral (n.) A spring of water passing under ground toward a cistern or conduit.
Tendril :: Tendril (a.) A slender, leafless portion of a plant by which it becomes attached to a supporting body, after which the tendril usually contracts by coiling spirally..
Triseriate :: Triseriate (a.) Arranged in three vertical or spiral rows.
Spink :: Spinii-spirulate (a.) Having spines arranged spirally. See Spicule.
Twine :: Twine (v. i.) To ascend in spiral lines about a support; to climb spirally; as, many plants twine..
Cable :: Cable (n.) A molding, shaft of a column, or any other member of convex, rounded section, made to resemble the spiral twist of a rope; -- called also cable molding..
Sasin :: Sasin (n.) The Indian antelope (Antilope bezoartica, / cervicapra), noted for its beauty and swiftness. It has long, spiral, divergent horns..
Anisopleura :: Anisopleura (n. pl.) A primary division of gastropods, including those having spiral shells. The two sides of the body are unequally developed..
Spiry :: Spiry (a.) Of a spiral form; wreathed; curled; serpentine.
Ganoidei :: Ganoidei (n. pl.) One of the subclasses of fishes. They have an arterial cone and bulb, spiral intestinal valve, and the optic nerves united by a chiasma. Many of the species are covered with bony plates, or with ganoid scales; others have cycloid scales..
Tympanum :: Tympanum (n.) A drum-shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged, -- used for raising water, as for irrigation..
Tube :: Tube (n.) A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm..
Bulimus :: Bulimus (n.) A genus of land snails having an elongated spiral shell, often of large size. The species are numerous and abundant in tropical America..
Acrospire :: Acrospire (n.) The sprout at the end of a seed when it begins to germinate; the plumule in germination; -- so called from its spiral form.
Volute :: Volute (n.) A spiral scroll which forms the chief feature of the Ionic capital, and which, on a much smaller scale, is a feature in the Corinthian and Composite capitals. See Illust. of Capital, also Helix, and Stale..
Papboat :: Papboat (n.) A large spiral East Indian marine shell (Turbinella rapha); -- so called because used by native priests to hold the oil for anointing.
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